WebAuthn checker - W3C Level 1 Mode

To use this to test Web Authentication support in Firefox, be sure you're using Firefox 60 or later.

Advanced

Relying Party ID to use. "bin.coffee" and "webauthn.bin.coffee" should be the only valid options. Ports, paths, schema and such should be forbidden.

Attestation type.

FIDO AppID to use. (If set, will use U2F for registration and the AppID compatibility extension. "https://bin.coffee/AppId" and "https://webauthn.bin.coffee/" are valid options for Firefox. Only "https://webauthn.bin.coffee/" is valid for Chrome.)

Should this page aggressively loop forever on an operation? (Test denial-of-service to WebAuthn)